Characteristics | Cases (n, %) | DSS (%) | HR (95% CI) | P value |
---|---|---|---|---|
Age (yr) | 0.838 | |||
≤75 | 97 (73.5) | 46.4 | 1.000 | |
>75 | 35 (26.5) | 42.9 | 1.055 (0.629 to 1.770) | |
Gender | ||||
Female | 11 (8.3) | 54.5 | 1.000 | 0.474 |
Male | 121 (91.7) | 44.6 | 1.394 (0.561 to 3.460) | |
Tumor size (cm) | 0.081 | |||
≤5 | 91 (68.9) | 52.7 | 1.000 | |
>5 | 41 (31.1) | 29.3 | 1.524 (0.950 to 2.443) | |
Tumor location | 0.778 | |||
Upper | 6 (4.5) | 50.0 | 1.000 | |
Middle | 55 (41.7) | 45.5 | 0.938 (0.286 to 3.081) | 0.916 |
Lower | 71 (53.8) | 45.1 | 1.114 (0.344 to 3.613) | 0.857 |
Histologic grade | 0.073 | |||
Well | 17 (12.9) | 58.8 | 1.000 | |
Moderately | 81 (61.4) | 48.1 | 1.587 (0.712 to 3.538) | 0.259 |
Poorly | 34 (25.7) | 32.4 | 2.461 (1.053 to 5.752) | 0.038 |
Vessel involvement | 0.029 | |||
No | 100 (75.8) | 48.0 | 1.000 | |
Yes | 32 (24.2) | 37.5 | 1.786 (1.061 to 3.007) | |
Perineural invasion | 0.007 | |||
No | 113 (85.6) | 49.6 | 1.000 | |
Yes | 19 (14.4) | 21.1 | 2.198 (1.240 to 3.894) | |
Tumor grade | 0.003 | |||
T1 | 19 (14.4) | 89.5 | ||
T2 | 16 (12.1) | 68.8 | 4.319 (0.854 to 12.727) | 0.069 |
T3 | 89 (67.4) | 33.7 | 7.731 (2.868 to 14.844) | 0.003 |
T4 | 8 (6.1) | 25.0 | 10.551 (2.969 to 21.902) | 0.001 |
TLN (nodes) | 0.729 | |||
≤18 | 47 (35.6) | 44.7 | 1.000 | |
>18 | 85 (64.4) | 45.9 | 0.905 (0.597 to 1.427) | |
N stage | <0.001 | |||
N0 | 58 (43.9) | 65.5 | 1.000 | |
N1 | 42 (31.8) | 42.9 | 2.059 (1.136 to 3.732) | 0.017 |
N2 | 18 (13.7) | 22.2 | 4.122 (2.047 to 8.299) | <0.001 |
N3 | 14 (10.6) | 0 | 19.108 (8.503 to 42.939) | <0.001 |
MLNR stage | <0.001 | |||
MLNR0 | 58 (43.9) | 65.5 | ||
MLNR1 | 40 (30.3) | 45.0 | 1.963 (1.070 to 3.602) | 0.026 |
MLNR2 | 19 (14.4) | 21.1 | 4.142 (2.902 to 8.202) | <0.001 |
MLNR3 | 15 (11.4) | 0 | 12.037 (5.866 to 24.698) | <0.001 |